ATV/UTV Engine
Upgrade or rebuild your ATV or UTV with our selection of engine parts engineered for ultimate aftermarket performance at low everyday prices. We carry popular pistons, cranks, and more!
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On Sale
ATHENA Top End Gasket Kit - Kawasaki P400250600018
ATHENA
MSRP: $46.95Now: $42.26Was: $46.95ATHENA Top End Gasket Kit Kawasaki P400250600018Specifically designed for the pro, semi-pro and amateur rider who freshens up their engine prior to a race or during midseason. Gives the rider a choice of using standard gas with stock compression, or race...09341959- SKU:
- 09341959
- Availability:
- Ships Same Business Day
- Weight:
- 0.14 LBS
- TYPE:
- TOP END
- RIDING STYLE:
- ATV
- MATERIAL:
- RUBBER
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
MSRP: $46.95Now: $42.26Was: $46.95 -
On Sale
ATHENA Top End Gasket Kit - Kawasaki P400250600017
ATHENA
MSRP: $38.95Now: $35.06Was: $38.95ATHENA Top End Gasket Kit Kawasaki P400250600017Specifically designed for the pro, semi-pro and amateur rider who freshens up their engine prior to a race or during midseason. Gives the rider a choice of using standard gas with stock compression, or race...09341958- SKU:
- 09341958
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- TYPE:
- TOP END
- MATERIAL:
- RUBBER
- UNITS:
- KIT
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- GASKET KIT
MSRP: $38.95Now: $35.06Was: $38.95 -
COMETIC Gasket Set - 94 mm - Kawasaki C7979-EST
COMETIC
$77.95COMETIC Gasket Set 94 mm Kawasaki C7979-ESTTop end gasket kits include correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS head gaskets promote an even torque load across the...09340938- SKU:
- 09340938
- Availability:
- Ships Same Business Day
- Weight:
- 0.23 LBS
- BORE SIZE METRIC:
- 94.00 MM
- TYPE:
- TOP END
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- ATV
$77.95 -
COMETIC Gasket Set - 94 mm - Honda C7877-EST
COMETIC
$88.95COMETIC Gasket Set 94 mm Honda C7877-ESTTop end gasket kits include correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS head gaskets promote an even torque load across the...09340899- SKU:
- 09340899
- Availability:
- Ships Same Business Day
- Weight:
- 0.18 LBS
- TYPE:
- TOP END
- BORE SIZE METRIC:
- 94.00 MM
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- ATV
- UNITS:
- KIT
$88.95 -
COMETIC Gasket Set - 89 mm - Honda C7826-EST
COMETIC
$98.95COMETIC Gasket Set 89 mm Honda C7826-ESTTop end gasket kits include correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS head gaskets promote an even torque load across the...09340898- SKU:
- 09340898
- Availability:
- Ships Same Business Day
- Weight:
- 0.29 LBS
- UNITS:
- KIT
- TYPE:
- TOP END
- BORE SIZE METRIC:
- 89.00 MM
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- ATV
$98.95 -
COMETIC Gasket Set - 86 mm - Honda C7825-EST
COMETIC
$98.95COMETIC Gasket Set 86 mm Honda C7825-ESTTop end gasket kits include correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS head gaskets promote an even torque load across the...09340897- SKU:
- 09340897
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- BORE SIZE METRIC:
- 86.00 MM
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- TOP END
$98.95 -
COMETIC Gasket Set - 102 mm - Yamaha C7798-EST
COMETIC
$108.95COMETIC Gasket Set 102 mm Yamaha C7798-ESTTop end gasket kits include correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS head gaskets promote an even torque load across the...09340896- SKU:
- 09340896
- Availability:
- Ships Same Business Day
- Weight:
- 0.34 LBS
- TYPE:
- TOP END
- UNITS:
- KIT
- BORE SIZE METRIC:
- 102.00 MM
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- ATV
$108.95 -
COMETIC Gasket Set - 84 mm - Yamaha C7096-EST
COMETIC
$86.95COMETIC Gasket Set 84 mm Yamaha C7096-ESTTop end gasket kits include correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS head gaskets promote an even torque load across the...09340889- SKU:
- 09340889
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- TYPE:
- TOP END
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- GASKET KIT
- BORE SIZE METRIC:
- 84.00 MM
- UNITS:
- KIT
$86.95 -
COMETIC Gasket Set - TRX350 C7402
COMETIC
$45.95COMETIC Gasket Set TRX350 C7402Top end gasket kits include correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS head gaskets promote an even torque load across the gasket sealing...09340273- SKU:
- 09340273
- Availability:
- Ships Same Business Day
- Weight:
- 0.18 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- ATV
- THICKNESS METRIC:
- 0.31 MM
- TYPE:
- TOP END
- THICKNESS IMPERIAL:
- 0,012'
- BORE SIZE METRIC:
- 82.00 MM
- UNITS:
- KIT
$45.95 -
On Sale
HOT RODS Cylinder Kit - Front 30007-K01
HOT RODS
MSRP: $569.95Now: $520.16Was: $581.95HOT RODS Cylinder Kit Front 30007-K01Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylinders, Cylinder kits include matched Vertex pistons to ensure longevity, performance and reduced engine...09310507- SKU:
- 09310507
- Availability:
- Ships Same Business Day
- Weight:
- 4.90 LBS
- COMPRESSION RATIO IMPERIAL:
- 8.8:1
- UNITS:
- KIT
- DISPLACEMENT:
- 749 CC
- RIDING STYLE:
- ATV
- BORE SIZE METRIC:
- 85.00 MM
- COLOR/FINISH:
- ALUMINUM
- PRODUCT NAME:
- CYLINDER KIT
- FEATURES:
- FRONT
- OVERBORE METRIC:
- STANDARD
- RIDING STYLE:
- UTV
- STYLE:
- STANDARD
MSRP: $569.95Now: $520.16Was: $581.95 -
On Sale
HOT RODS Standard Cylinder - Rear 30008
HOT RODS
MSRP: $409.95Now: $376.16Was: $420.95HOT RODS Standard Cylinder Rear 30008Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylinders, Nickel Silicon Carbide plated for long life, Made in the U.S.A.09310506- SKU:
- 09310506
- Availability:
- Ships Same Business Day
- Weight:
- 3.70 LBS
- COMPRESSION RATIO IMPERIAL:
- 8.8:1
- RIDING STYLE:
- ATV
- TYPE:
- REAR
- RIDING STYLE:
- UTV
- BORE SIZE METRIC:
- 85.00 MM
- PRODUCT NAME:
- CYLINDER
- UNITS:
- EACH
MSRP: $409.95Now: $376.16Was: $420.95 -
On Sale
HOT RODS Standard Cylinder - Front 30007
HOT RODS
MSRP: $409.95Now: $376.16Was: $420.95HOT RODS Standard Cylinder Front 30007Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylinders, Nickel Silicon Carbide plated for long life, Made in the U.S.A.09310505- SKU:
- 09310505
- Availability:
- Ships Same Business Day
- Weight:
- 3.70 LBS
- COMPRESSION RATIO IMPERIAL:
- 8.8:1
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- PRODUCT NAME:
- CYLINDER
- BORE SIZE METRIC:
- 85.00 MM
- RIDING STYLE:
- UTV
- TYPE:
- FRONT
MSRP: $409.95Now: $376.16Was: $420.95 -
On Sale
HOT RODS Big Bore Cylinder Kit 31007-K01
HOT RODS
MSRP: $1,395.95Now: $1,256.36Was: $1,395.95HOT RODS Big Bore Cylinder Kit 31007-K01Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylinders, Cylinder kits include matched Vertex pistons to ensure longevity, performance and reduced engine...09310504- SKU:
- 09310504
- Availability:
- Ships Same Business Day
- Weight:
- 8.70 LBS
- BORE SIZE METRIC:
- 91.00 MM
- FEATURES:
- FRONT
- OVERBORE METRIC:
- +6.00 MM
- RIDING STYLE:
- ATV
- FEATURES:
- REAR
- COLOR/FINISH:
- ALUMINUM
- COMPRESSION RATIO IMPERIAL:
- 9.0:1
- RIDING STYLE:
- UTV
- DISPLACEMENT:
- 800 CC
- FEATURES:
- MAY REQUIRE CASE BORING
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- BIG BORE
- UNITS:
- KIT
MSRP: $1,395.95Now: $1,256.36Was: $1,395.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Standard 20003-K02
CYLINDER WORKS
MSRP: $646.95Now: $593.96Was: $664.95CYLINDER WORKS Cylinder Kit Standard 20003-K02Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylinders, Cylinder kits include matched Vertex pistons to ensure longevity, performance and reduced...09310376- SKU:
- 09310376
- Availability:
- Ships Same Business Day
- Weight:
- 4.70 LBS
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- UNITS:
- KIT
- STYLE:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 95.00 MM
- DISPLACEMENT:
- 449 CC
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- COMPRESSION RATIO IMPERIAL:
- 12.1:1
- CYLINDER DIAMETER:
- 95,00 MM
- RIDING STYLE:
- ATV
MSRP: $646.95Now: $593.96Was: $664.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Big Bore 21104-K01
CYLINDER WORKS
MSRP: $828.95Now: $761.36Was: $851.95CYLINDER WORKS Cylinder Kit Big Bore 21104-K01Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylinders, Cylinder kits include matched Vertex pistons to ensure longevity, performance and reduced...09310375- SKU:
- 09310375
- Availability:
- Ships Same Business Day
- Weight:
- 10.42 LBS
- COMPRESSION RATIO IMPERIAL:
- 9.2:1
- RIDING STYLE:
- ATV
- ENGINE TYPE:
- 4-CYCLE
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 105,00 MM
- CYLINDER DIAMETER METRIC:
- 105.00 MM
- OVERBORE METRIC:
- +3.00 MM
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- BIG BORE
- UNITS:
- KIT
- RIDING STYLE:
- UTV
- DISPLACEMENT:
- 727 CC
MSRP: $828.95Now: $761.36Was: $851.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Standard 20104-K01
CYLINDER WORKS
MSRP: $690.95Now: $634.46Was: $709.95CYLINDER WORKS Cylinder Kit Standard 20104-K01Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylinders, Cylinder kits include matched Vertex pistons to ensure longevity, performance and reduced...09310374- SKU:
- 09310374
- Availability:
- Ships Same Business Day
- Weight:
- 8.40 LBS
- COMPRESSION RATIO IMPERIAL:
- 9.2:1
- CYLINDER DIAMETER:
- 102,00 MM
- CYLINDER DIAMETER METRIC:
- 102.00 MM
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- DISPLACEMENT:
- 686 CC
- RIDING STYLE:
- UTV
- STYLE:
- STANDARD
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
MSRP: $690.95Now: $634.46Was: $709.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Big Bore 11009-K01
CYLINDER WORKS
MSRP: $749.95Now: $674.96Was: $749.95CYLINDER WORKS Cylinder Kit Big Bore 11009-K01Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylinders, Cylinder kits include matched Vertex pistons to ensure longevity, performance and reduced...09310332- SKU:
- 09310332
- Availability:
- Ships Same Business Day
- Weight:
- 8.28 LBS
- DISPLACEMENT:
- 727 CC
- RIDING STYLE:
- ATV
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 105,00 MM
- CYLINDER DIAMETER METRIC:
- 105.00 MM
- OVERBORE METRIC:
- +3.00 MM
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- BIG BORE
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 10.1:1
- ENGINE TYPE:
- 4-CYCLE
MSRP: $749.95Now: $674.96Was: $749.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Standard 10009-K01
CYLINDER WORKS
MSRP: $699.95Now: $629.96Was: $699.95CYLINDER WORKS Cylinder Kit Standard 10009-K01Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylinders, Cylinder kits include matched Vertex pistons to ensure longevity, performance and reduced...09310331- SKU:
- 09310331
- Availability:
- Ships Same Business Day
- Weight:
- 7.61 LBS
- CYLINDER DIAMETER METRIC:
- 102.00 MM
- RIDING STYLE:
- ATV
- DISPLACEMENT:
- 686 CC
- STYLE:
- STANDARD
- ENGINE TYPE:
- 4-CYCLE
- COMPRESSION RATIO IMPERIAL:
- 10.0:1
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 102,00 MM
- PRODUCT NAME:
- CYLINDER KIT
- UNITS:
- KIT
MSRP: $699.95Now: $629.96Was: $699.95 -
On Sale
ATHENA Cylinder Kit - KFX450 - 96mm P400250100009
ATHENA
MSRP: $802.95Now: $722.66Was: $802.95ATHENA Cylinder Kit KFX450 96mm P400250100009Kits include aluminum cylinder with nickel-carbide coating designed with larger water jackets, Forged piston with molybdenum coating, Special gasket kit, Easy-to-follow step-by-step installation instructions,...09310253- SKU:
- 09310253
- Availability:
- Ships Same Business Day
- Weight:
- 4.77 LBS
- ENGINE TYPE:
- 4-STROKE
- BORE SIZE METRIC:
- 96.00 MM
- CYLINDER BORE COATING:
- NICKEL-CARBIDE
- RIDING STYLE:
- ATV
- DISPLACEMENT:
- 450 CC
- MATERIAL:
- ALUMINUM
- STYLE:
- STOCK BORE
- PRODUCT NAME:
- CYLINDER KIT
- UNITS:
- KIT
MSRP: $802.95Now: $722.66Was: $802.95 -
On Sale
ATHENA Cylinder Kit - YFZ350 - 68mm P400485100024
ATHENA
MSRP: $1,176.95Now: $1,059.26Was: $1,176.95ATHENA Cylinder Kit YFZ350 68mm P400485100024Kits include aluminum cylinder with nickel-carbide coating designed with larger water jackets, Forged piston with molybdenum coating, Special gasket kit, Easy-to-follow step-by-step installation instructions,...09310249- SKU:
- 09310249
- Availability:
- Ships Same Business Day
- Weight:
- 10.61 LBS
- BORE SIZE METRIC:
- 68.00 MM
- CYLINDER BORE COATING:
- NICKEL-CARBIDE
- DISPLACEMENT:
- 392 CC
- ENGINE TYPE:
- 2-STROKE
- UNITS:
- KIT
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- BIG BORE
MSRP: $1,176.95Now: $1,059.26Was: $1,176.95
